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Phys.org / Making quantum vibrations nonlinear to enable phonon-phonon interactions
Phonons are the quantum units of mechanical vibration. They describe how motion propagates through a solid at the smallest possible scales, in much the same way that electrons describe electric currents. Because phonons can ...
Phys.org / Radio signals at the edge of extreme stars come from far beyond their surfaces
Pulsars are ultra-dense, rapidly spinning, and highly magnetized remnants of dead stars. They act like cosmic lighthouses, sending out regular pulses of radio waves and sometimes gamma rays in beams that sweep across the ...
Tech Xplore / Memristor demonstrates use in fully analog hardware-based neural network
As AI processing demands reach the limits of current CMOS technology, neuromorphic computing—hardware and software that mimic the human brain's structure—can help process information faster and more efficiently. A new memristor ...
Medical Xpress / Passion fruit–derived molecule shows promise as a future Alzheimer's drug candidate
Four years ago, a research group at the University of Oslo made what would turn out to be a major discovery. They found that an extract from passion fruit had the potential to slow the development of Alzheimer's disease. ...
Phys.org / A spinel crystal structure exhibits unusual, pressure-induced superconductivity
Superconductors are materials that conduct electricity with an electrical resistance of zero. Superconductivity is generally observed when materials are cooled down to extremely low temperatures. In some cases, however, like ...
Phys.org / XRISM clocks hot wind of galaxy M82 at 2 million mph
For the first time, astronomers have directly measured the speed of superheated gas billowing from a cauldron of stellar activity at the heart of M82, a nearby galaxy undergoing an extraordinary burst of star formation. The ...
Tech Xplore / Plasma and lemon juice: Milder method retrieves nearly 95% of critical minerals in battery waste
Critical minerals such as those used in lithium-ion batteries come in limited supply and are concentrated in specific regions around the world. Securing a reliable supply of these materials is a priority for governments worldwide, ...
Phys.org / Topological solitons power a chip-scale frequency comb source
Caltech scientists have developed a new way to produce optical frequency combs—important tools in devices that keep time and measure distances very precisely—at the chip scale, an advance that should make it easier to incorporate ...
Phys.org / Red-tailed bumblebees found to be key hosts for dangerous bee virus
Wild bumblebees serve as key hosts for acute bee paralysis virus. While the virus appears to cause little harm to bumblebees, infection is usually fatal to honeybees. Until now, it was assumed that honeybees were the key ...
Medical Xpress / Scientists call out health-harming corporations driving rise in chronic disease
Chronic diseases including cancer, diabetes, neurocognitive disorders and infertility are rising globally, with health-harming products such as fossil fuels, tobacco, ultra-processed foods, toxic chemicals, plastics and alcohol ...
Tech Xplore / Dust-resilient perovskite solar cells could cut manufacturing costs and expand green energy worldwide
Research appearing in Communications Materials has shown that perovskite solar cells (PSCs) are remarkably resilient to dust during production, challenging the industry belief that high-performance solar technology must be ...
Phys.org / If the Laschamps geomagnetic excursion happened today, aviation radiation exposure would be radically altered
Earth's magnetic field acts as a vital shield against radiation arriving from space, but it is not constant. A new international study has examined how a reduction of the magnetic field similar to the Laschamps excursion ...
